# DifferentialPrivacyPreviewAggregation
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Provides an estimate of the number of aggregation functions that the member who can query can run given the epsilon and noise parameters.

## Contents
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 ** maxCount **   <a name="API-Type-DifferentialPrivacyPreviewAggregation-maxCount"></a>
The maximum number of aggregations that the member who can query can run given the epsilon and noise parameters.  
Type: Integer  
Valid Range: Minimum value of 0.  
Required: Yes

 ** type **   <a name="API-Type-DifferentialPrivacyPreviewAggregation-type"></a>
The type of aggregation function.  
Type: String  
Valid Values: `AVG | COUNT | COUNT_DISTINCT | SUM | STDDEV`   
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cleanrooms-2022-02-17/DifferentialPrivacyPreviewAggregation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cleanrooms-2022-02-17/DifferentialPrivacyPreviewAggregation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cleanrooms-2022-02-17/DifferentialPrivacyPreviewAggregation)